#) 1.08.01.0129 aka R258275 A07, this is the same version as the Windows Update site provides, see http://support.dell.com/support/downloads/download.aspx?c=us&cs=555&l=en&s=biz&releaseid=R258275&SystemID=PREC_M2400&servicetag=&os=WW1&osl=en&deviceid=16027&devlib=0&typecnt=0&vercnt=2&catid=-1&impid=-1&formatcnt=0&libid=17&typeid=-1&dateid=-1&formatid=-1&source=-1&fileid=379428

*) trying different versions of the webcam driver and the nefsis software I found the following behaviour: